Fedora 34: 2021-73d63662b0 Critical Grub2 Permission Exposure

The GRand Unified Bootloader (GRUB) is a highly configurable and

customizable bootloader with modular architecture. It supports a rich

variety of kernel formats, file systems, computer architectures and

hardware devices.

- restore umask for grub.cfg (CVE-2021-3981) - re-run signing after

infrastructure fix

* Fri Dec 10 2021 Robbie Harwood - 2.06-9

- Bump to re-run signing (no code changes)

* Thu Dec 9 2021 Robbie Harwood - 2.06-8

- Restore grub.cfg umask (CVE-2021-3981)

- Resolves: rhbz#2030358

[ 1 ] Bug #2030358 - CVE-2021-3981 grub2: Incorrect permission in grub.cfg allow unprivileged user to read the file content [fedora-all]

https://bugzilla.redhat.com/show_bug.cgi?id=2030358

[ 2 ] Bug #2030940 - Booting with grub2-2.06-9.fc35 and UEFI Secure Boot enabled resulted in Error: Verification Failed: (0x1A) Security Violation

https://bugzilla.redhat.com/show_bug.cgi?id=2030940

su -c 'dnf upgrade --advisory FEDORA-2021-73d63662b0' at the command

line. For more information, refer to the dnf documentation available at

https://dnf.readthedocs.io/en/latest/command_ref.html

All packages are signed with the Fedora Project GPG key. More details on the

GPG keys used by the Fedora Project can be found at

https://fedoraproject.org/security/

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